In the UK, new rail vehicles are required to meet a range of proof, fatigue and collapse loads before acceptance for use on the rail network. Additionally, in the latest release of the Railway Group Standard, specifying structural requirements, an alternative dynamic crash loadcase is defined. Recent customer specifications have also included a crashworthiness requirement, which in some cases exceeds that of the Group Standard. In the UK, aluminium is extensively used for the production of multiple unit vehicle bodyshells. These structures are constructed and assembled using welded and bolted joints. To fully characterise the crashworthiness of a vehicle a structural analyst must be able to simulate the behaviour of welded and bolted joints in aluminium under dynamic loading, since recent 'real life' collisions have shown these areas to be critical factors affecting structural integrity. As part of the validation procedure for new designs, finite element (FE) models are produced to simulate new vehicle crash performance against targets set by these requirements. The current technique used for modeling welded aluminium sections and particularly the heat affected zone (HAZ) is presented in the paper. Bolt failure modeling within large structures is also addressed and results are presented from calibration tests and simulations carried out to evaluate the failure behaviour of Huck Bolted connections. This paper presents an overview of the current state of the art in the rail industry and describes, through various case studies, the approach that Bombardier Transportation uses for validation of new vehicles. These case studies also show novel aspects of new vehicle design, which increase safety and highlight the commitment of Bombardier Transportation to a 'design for crashworthiness' approach to new passenger vehicles.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Validation simulation of new railway rolling stock using the finite element method


    Additional title:

    Validierungssimulation neuer Schienenfahrzeuge unter Einsatz der Finite-Elemente-Methode


    Contributors:
    Wilson, M. (author) / Ricketts, B. (author)


    Publication date :

    2003


    Size :

    13 Seiten, 13 Bilder, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Method for controlling railway rolling stock and corresponding railway rolling stock

    VILLIÉ LOUIS / SEYADOU MOUSTAPHA MALANGOU / MORVAN FABRICE | European Patent Office | 2024

    Free access

    RAILWAY ROLLING STOCK

    HIRASHIMA TOSHIYUKI / HONMA SHIROU / NAGAHARA HITOSHI | European Patent Office | 2016

    Free access

    Railway rolling stock

    Batty, T.E. | Engineering Index Backfile | 1928


    DINING CAR FOR RAILWAY ROLLING STOCK AND RAILWAY ROLLING STOCK

    KONDIRA EMMANYUEL | European Patent Office | 2021

    Free access

    Rhodesian Railway rolling stock

    Engineering Index Backfile | 1901